RESUMO
Objective:To investigate the indications of half-ICSI and the value of half-ICSI to prevent fertilization failure. Methods:The indications of the cases in the group of fertilization failure(fertilization rate was 0%)or lower fertilization rate(fertilization rate less than 30%) were compared with those in the group(fertilization rate more than 65%). Results:The fertilization rate of IVF(in vitro fertilization) in the half-ICSI was lower than that of conventional IVF. The indication of the borderline semen quality in the groups of fertilization failure and lower fertilization rate were 51.2% and 63.3% ,respectively.Compared with the normal fertilization rate group, the indications in the groups of fertilization failure or lower fertilization rate were sig- nificantly differen(tP